Patents by Inventor Gatinois Jean

Gatinois Jean has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for controlling the speed of a motor of an electric fan unit, notably for an automobile heating and/or air conditioning installation
    Publication number: 20050194919
    Abstract: The invention relates to a system for controlling the speed of a motor (1) of an electric fan unit comprising a field-effect transistor (3) that controls the motor (1) using pulse-width modulation, the field-effect transistor (3) being connected to a circuit (5) comprising a voltage source (7) and a resistive element (9) in series, the circuit (5) is connected between the gate (G) of the field-effect transistor (3) and a second source (S2) that is connected to a first source (S1) of the field-effect transistor (3), via an inductor (11) in order to allow a reduction in the slope of the current as the field-effect transistor (3) switches.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Applicant: Valeo Climatisation S.A.
    Inventors: Goumain Xavier, Gatinois Jean